Special provisions may be very complex. The extracts are taken from 49 CFR §172.102
. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
For combination packagings, if glass inner packagings (including ampoules) are used, they must be packed with absorbent material in tightly closed metal receptacles before packing in outer packagings.
Browse special provision A3
Authorized IBCs: Metal (11A, 11B, 11N, 21A,
21B, 21N, 31A, 31B and 31N); Rigid plastics
(11H1, 11H2, 21H1, 21H2, 31H1 and 31H2 );
Composite (11HZ1, 11HZ2, 21HZ1, 21HZ2 and
31HZ1); Fiberboard (11G); Wooden (11C, 11D
and 11F); Flexible (13H1, 13H2, 13H3, 13H4,
13H5, 13L1, 13L2, 13L3, 13L4, 13M1 or 13M2).
Browse special provision IB8
When IBCs other than metal or rigid plastics
IBCs are used, they must be offered for
transportation in a closed freight container
or a closed transport vehicle.
Browse special provision IP2
Flexible, fiberboard or wooden IBCs must be
sift-proof and water-resistant or be fitted
with a sift-proof and water-resistant liner.
Browse special provision IP4
Aluminum construction materials are not authorized for any part of a packaging which is normally in contact with the hazardous material.
Browse special provision N34
a. The maximum degree of filling must not exceed the degree of filling determined by the following:
is the maximum mean bulk temperature during transport,
is the temperature in degrees celsius of the liquid during filling, and α is the mean coefficient of cubical expansion of the liquid between the mean temperature of the liquid during filling (tf
) and the maximum mean bulk temperature during transportation (tr
) both in degrees celsius.
b. For liquids transported under ambient conditions α may be calculated using the formula:
are the densities (in units of mass per unit volume) of the liquid at 15 °C (59 °F) and 50 °C (122 °F), respectively.
Browse special provision TP2
The portable tank instruction assigned for this substance applies for granular and powdered solids and for solids which are filled and discharged at temperatures above their melting point which are cooled and transported as a solid mass. Solid substances transported or offered for transport above their melting point are authorized for transportation in portable tanks conforming to the provisions of portable tank instruction T4 for solid substances of packing group III or T7 for solid substances of packing group II, unless a tank with more stringent requirements for minimum shell thickness, maximum allowable working pressure, pressure-relief devices or bottom outlets are assigned in which case the more stringent tank instruction and special provisions shall apply. Filling limits must be in accordance with portable tank special provision TP3. Solids meeting the definition of an elevated temperature material must be transported in accordance with the applicable requirements of this subchapter.
Browse special provision TP33